Aesthetic medical irradiation device

Abstract

The application discloses a medical and aesthetic irradiation device. The medical and aesthetic irradiation device comprises a plane light guide structure, a line light guide structure and a light source assembly. The line light guide structure is a linear structure, and comprises a plurality of light outlets. The line light guide structure is provided with at least two light inlets and a plurality of light outlets. The light source assembly is arranged at the light inlets of the line light guide structure. Light emitted by the light source assembly is coupled to the line light guide structure. Light entering the line light guide structure is transmitted to the plane light guide structure through each light outlet. Light entering the plane light guide structure is uniformly transmitted to the outside through one side of the plane light guide structure. The medical and aesthetic irradiation device adopts the technology of combining the line light guide structure with the plane light guide structure, so that the purpose of plane illumination can be achieved by using a small number of light sources, and the weight and cost of the light source of the medical and aesthetic irradiation device are greatly reduced.

Description

Technical Field

[0001] This application relates to the field of phototherapy technology, and in particular to a medical aesthetic irradiation device. Background Technology

[0002] Photobiological modulation therapy (PBMT) is finding increasing applications in the field of life and health. PBMT is a non-invasive treatment method that uses a non-thermal light source emitted by low-intensity lasers or LEDs to stimulate physiological functions, thereby improving tissue repair, relieving pain, and regulating immune function. For example, PBMT has been used to promote hair growth and treat baldness, and is also widely used for facial skin rejuvenation and wrinkle reduction.

[0003] Currently, almost all designs on the market use lasers, LEDs, or both directly to irradiate the skin. The biggest drawback of this design is poor illumination uniformity and a large number of lasers / LEDs (leading to increased weight and cost). Especially for facial irradiation, which requires two to three wavelengths of light, this design struggles to achieve uniform coverage of illumination and color within the irradiated area. This results in uneven skin temperature, leading to a very poor experience. Furthermore, existing solutions often use dozens or even hundreds of light sources, resulting in significant weight and cost. While some existing phototherapy devices incorporate light guide structures, these only vaguely describe using a light guide plate to conduct the light beam onto the skin surface, without detailing the optical structure (to achieve better light field uniformity), making them less feasible. Some technologies describe a gradual light-guiding structure in linear phototherapy solutions, but this is limited to linear light sources, similarly resulting in a poor experience and uneven temperature distribution. In addition, although the existing surface light guide solution reduces the number of light sources to some extent, it still requires a considerable number of light sources to build a line light source, which is then expanded into a surface light source by the light guide plate.

[0004] Therefore, it is necessary to develop a medical aesthetic device to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a medical aesthetic irradiation device that solves the issues of uneven light output, large number of light sources, heavy weight, and high cost of existing medical aesthetic devices.

[0006] The present invention solves the above-mentioned technical problems mainly through the following technical solutions: A medical aesthetic irradiation device is provided for human physiotherapy, comprising a surface light guide structure, a line light guide structure, and a light source assembly. The line light guide structure is a linear structure with at least two light inlets and multiple light outlets. The light source assembly is coupled to the line light guide structure, and the light emitted by the light source assembly is coupled to the light inlets of the line light guide structure. The line light guide structure is used to transmit the light received at the light inlets and transmit the light to the surface light guide structure through the light outlets. The surface light guide structure is used to receive the light transmitted by the line light guide structure and transmit it to the outside world through the surface light guide structure.

[0007] Furthermore, it also includes a beam shaping structure, which is disposed between the light outlet and the surface light guide structure, for adjusting the divergence angle and / or "angle-energy" distribution of the light emitted from the light outlet.

[0008] Furthermore, the linear light guide structure includes a linear light guide body made of light guide material and a first reflective structure disposed around the periphery of the linear light guide body. A plurality of first light output structures are provided on one side of the linear light guide body along its linear direction, and the first reflective structure is provided with a light outlet corresponding to each of the first light output structures.

[0009] Furthermore, the first light-guiding structure is one of an optical microlens, a rough surface, or a diffraction structure disposed on the surface of the linear light guide body.

[0010] Furthermore, the surface light guide structure is a curved surface structure or a hollow hemispherical structure.

[0011] Furthermore, the surface light guide structure includes a surface light guide body made of light guide material and a second reflective structure disposed on the other side of the surface light guide body, and linear second light-exiting structures are evenly distributed inside or on the other side of the surface light guide body.

[0012] Furthermore, the second light-guiding structure includes multiple annular linear structures, which are spaced apart from the center of the surface light-guiding body to the periphery.

[0013] Furthermore, the second light-guiding structure is one of an optical microlens, a rough surface, or a diffraction structure disposed inside the surface light guide body or on the other side surface.

[0014] Furthermore, a light-transmitting protective cover is provided on one side of the surface light guide structure.

[0015] Furthermore, the light source assembly includes at least two different wavelengths: a first light source and a second light source, wherein the first light source is used to emit a first light beam and the second light source is used to emit a second light beam. Furthermore, one end of the line-guided light structure is provided with a wavelength selective device, which is used to combine the first light beam and the second light beam and then inject the combined light beam into the light inlet of the line-guided light structure; or it includes an optical fiber combining device, which is used to couple to the first light source and the second light source, and to combine the light beams emitted by the two light sources, and then inject the combined light beam into the light inlet of the line-guided light structure.

[0016] Furthermore, the distance between two adjacent light-emitting ports located near the light source assembly is greater than the distance between two adjacent light-emitting ports located far from the light source assembly; or the length of the light-emitting port located near the light source assembly is less than the length of the light-emitting port located far from the light source assembly.

[0017] The beneficial technical effects of this medical aesthetic irradiation device are as follows: The light source enters the surface light guide structure through multiple light outlets in the line light guide structure, effectively turning the light source into multiple evenly distributed light sources. The surface light guide structure then evenly distributes the light to the outside. On one hand, the line light guide structure significantly reduces the amount of light source; on the other hand, the surface light guide structure enables uniform light output. This greatly reduces the weight and cost of the light source in the medical aesthetic irradiation device, resulting in a lightweight and more uniform medical aesthetic irradiation device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram showing the results of the medical aesthetic irradiation device provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the optical structure of the surface light guide structure in the medical aesthetic irradiation device provided in this embodiment of the present invention; Figure 3 This is a schematic diagram of the optical structure of the line light guide structure in the medical aesthetic irradiation device provided in this embodiment of the utility model; Figure 4 This is a schematic diagram of the optical structure of the medical aesthetic irradiation device provided in this embodiment of the utility model; Figure 5 This is a schematic diagram of one embodiment of the first light-exiting structure in the medical aesthetic irradiation device provided by this utility model. Figure 6 This is a schematic diagram of another embodiment of the first light-exiting structure in the medical aesthetic irradiation device provided in this utility model embodiment; Figure 7 This is a schematic diagram of another embodiment of the first light-exiting structure in the medical aesthetic irradiation device provided in this utility model embodiment; Figure 8 This is a schematic diagram of the structure of one embodiment of the light source component in the medical aesthetic irradiation device provided in this utility model embodiment; Figure 9 This is a schematic diagram of another embodiment of the light source component in the medical aesthetic irradiation device provided in this utility model. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0021] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0025] For details, please refer to Figures 1 to 9 This application provides a medical aesthetic irradiation device. The device employs a combined surface light guide structure 1 and line light guide structure 2. By setting multiple light outlets in the line light guide structure 2, multiple dispersed light sources are incident on the surface light guide structure 1, significantly reducing the number of light source components 3. The surface light guide structure 1 then uniformly guides the line light sources out in a larger area to form a surface light source, achieving surface irradiation. This greatly reduces the weight and cost of the light source in the medical aesthetic irradiation device, achieving the goal of a lightweight and uniformly light-emitting medical aesthetic irradiation device.

[0026] Specifically, the irradiation device includes a surface light guide structure 1, a line light guide structure 2, and a light source assembly 3. The line light guide structure 2 itself is a linear structure with multiple light outlets designed along its entire linear direction. The line light guide structure 2 also has a light inlet. The light source assembly 3 is arranged at the light inlet of the line light guide structure 2. Multiple wavelengths of light emitted by the light source assembly 3 are coupled to the light inlet of the line light guide structure 2. The light entering the light inlet is transmitted within the line light guide structure 2 and then transmitted to the surface light guide structure 1 through the multiple light outlets of the line light guide structure 2. After being received by the surface light guide structure 1, the line light source is transmitted within the surface light guide structure 1 and then uniformly transmitted to the outside through the surface light guide structure 1, forming a large-area surface light source that irradiates the skin for treatment.

[0027] In some embodiments, a beam shaping structure 6 is arranged between the light outlet of the line light guide structure 2 and the surface light guide structure 1. This beam shaping structure 6 is used to adjust the divergence angle and / or angle-energy distribution of the line light source. Specifically, since the beam emitted from the line light source has a large divergence angle and the angle-energy distribution relationship of the beam is not the traditional Gaussian or Lambertian distribution relationship of a point light source, the beam shaping structure 6 is provided. This structure can adjust the divergence angle and / or angle-energy distribution emitted from the light outlet of the line light guide structure 2, thereby improving the matching between the beam passing through the beam shaping structure 6 and the surface light guide structure 1, and thus improving the luminous efficiency and / or illumination uniformity of the light guide system.

[0028] In this embodiment, the beam shaping structure 6 uses an optical device with optical collection (focusing) function, such as a convex lens of the appropriate model.

[0029] In some embodiments, the linear light guide structure 2 includes a linear light guide body 21 made of light guide material and a first reflective structure 22 disposed around the periphery of the linear light guide body 21. A plurality of first light-exiting structures 211 are provided on one side of the linear light guide body 21 along its linear direction, and the first reflective structure 22 has a light outlet corresponding to each of the first light-exiting structures 211. In actual use, the light emitted by the light source assembly 3 is coupled and enters the linear light guide body 21, satisfying the condition of total internal reflection within the linear light guide body 21. When the total internal reflection beam is incident on the first light-exiting structure 211, part of the emitted beam satisfies total internal reflection and continues to propagate inside the line light guide structure 2, while the other part of the beam is emitted outside the first light-exiting structure 211. Among these, part of the emitted beam is transmitted to the surface light guide structure 1 through the light outlet, and part of the emitted light is incident on the first reflective structure 22, then reflected by the first reflective structure 22, and finally transmitted from the light outlet to the surface light guide structure 1. Under the combined action of the first light-exiting structure 211 and the first reflective structure 22, the line light source is transmitted to the surface light guide structure 1 through each light outlet.

[0030] In this embodiment, the end of the line light guide structure 2 forms its light inlet, and the two ends of the line light guide structure 2 respectively form two light inlets. The light emitted by the two sets of light source components 3 is coupled and enters from the end of the two ends of the line light guide structure 2, then is transmitted internally and exits through each light outlet, and is transmitted to the surface light guide structure 1. The light beam emitted by the light source component 3 is coupled and enters the second light inlet at a specific angle (this angle satisfies the incident angle condition of total internal reflection, that is, the incident angle is greater than a certain critical angle θc (the light is away from the normal), the refracted light disappears, and all incident light will be reflected and will not enter the low refractive index medium), thereby realizing the continuous propagation of the light beam within the line light guide structure 2.

[0031] In this embodiment, the light emitted by the light source component 3 is guided out through multiple light outlets of the light guide structure 2, thereby reducing the number of light sources required to achieve uniform light emission.

[0032] In this preferred embodiment, the distance between two adjacent light-emitting ports located near the light source component 3 is greater than the distance between two adjacent light-emitting ports located far from the light source component 3. This arrangement can make the emitted light more uniform because the light near the end of the light source component 3 is stronger. As the transmission distance increases, the light source gradually weakens, and the light-emitting ports at the far end are more densely packed, thus ensuring that the amount of light emitted is the same as that at the near end.

[0033] In this preferred embodiment, the length of the light-emitting port located near the light source assembly 3 is shorter than the length of the light-emitting port located at the far end of the light source assembly 3. This design allows for more uniform emitted light because the light near the end of the light source assembly 3 is stronger, and the light intensity gradually decreases as the transmission distance increases. By setting a larger light-emitting port, more light can be emitted.

[0034] In this preferred embodiment, the light output rate of the light outlet near the end of the light source component 3 is less than that of the end far from the light source component 3. This setting can ensure that the light output from the longitudinal light guide structure 2 to the surface light guide structure 1 is more uniform.

[0035] In some embodiments, the line guide structure 2 may also include three or more ends, with a set of light source components 3 provided at each end.

[0036] It is particularly important to emphasize that in this embodiment, after the light emitted by the light source component 3 is coupled and incident at a large angle from the end side of the line guide structure 2, the light beam with more than 80% energy satisfies the optical total internal reflection condition when it first enters the light inlet of the line guide structure 2.

[0037] In this embodiment, the first reflective structure 22 may include the following structural forms: The first reflective structure 22 is a reflective film attached to the surface of the linear light guide body 21; The first reflective structure 22 is a reflective coating applied to the surface of the linear light guide body 21; The first reflective structure 22 is a cladding with an arc-shaped cross-section adapted to the shape of the linear light guide body 21, and is spaced apart from the linear light guide body 21 to form a first gap. A low-refractive-index dielectric layer is provided in the second gap. The low-refractive-index dielectric layer provides the conditions for the reflection of the line light source inside the linear light guide body 21. In actual use, the edge of the first reflective structure 22 and the edge of the surface light guide structure 1 can be directly fixed to each other as a whole, or they can be fixed together on the same carrier (or shell). The low-refractive-index dielectric layer can be an air layer.

[0038] It should be emphasized that the first reflective structure 22 can realize the recovery of the light beam after it is reflected by the first light-guiding structure 211, and at the same time avoid the problem of light leakage in the area where the first light-guiding structure 211 is not arranged in the line light guide structure 2 of the irradiation device. After recovering the light from the invalid angle of the line light source, the first reflective structure 22 can improve the light efficiency of the light guide system.

[0039] In this embodiment, the first light-exiting structure 211 may include at least the following structural forms: See Figure 5 The first light-guiding structure 211 includes multiple optical microlenses a densely distributed on the surface of the line light guiding structure 2. When the line light source is incident on each ring of optical microlenses, it is refracted and emitted through the light outlet.

[0040] See Figure 6 The first light-guiding structure 211 is a rough surface b on the surface of the line light guiding structure 2. When the line light source is incident on the rough surface, diffuse reflection occurs, and a portion of the light beam exits the first light-guiding structure 211 and is emitted from the light outlet.

[0041] See Figure 7 The first light-guiding structure 211 is a diffraction structure c disposed on the surface of the online light-guiding structure 2. When the line light source is incident on the diffraction structure, diffraction occurs, and part of the diffraction order sub-beams will exit the first light-guiding structure 211 and be emitted from the light-emitting port.

[0042] In this embodiment, the surface light guide structure 1 is a curved surface structure or a hollow hemispherical structure. Its specific shape can be designed according to different application scenarios and needs. For example, for facial irradiation, it is designed as a curved surface that conforms to the facial contours; for head irradiation, it can be designed as a bowl shape (such as the shape of a phototherapy cap) and placed on the user's head (see...). Figure 1 Meanwhile, the distribution positions between the line light guide structure 2 and the surface light guide structure 1 are also adaptively adjusted according to the different shapes of the designs.

[0043] Taking the curved surface design of the light guide structure 1 as a light therapy cap (hollow hemispherical structure, or similar hollow hemispherical structure) as an example, the line light guide structure 2 is distributed on the periphery of the edge of the light guide structure 1, that is, distributed at the bottom of the cap-shaped body of the light guide structure 1, and is arranged in a ring around the bottom end. The light rays coming out of the light outlet of the line light guide structure 2 are incident from the edge side of the light guide structure 1. This incident position can meet the requirement that the line light source is incident at a large angle from the end side of the light guide structure 1.

[0044] Specifically, the surface light guide structure 1 includes a curved surface light guide body 11 made of light guide material and a second reflective structure 12 disposed on the other side (i.e., the outer surface side) of the surface light guide body 11. Second light-exiting structures 111 are evenly distributed inside or on the other side of the surface light guide body 11. Multiple line light sources led out by the line light guide structure 2 are incident on the surface light guide structure 1 from different directions. The incident angle is designed to ensure total internal reflection of light within the surface light guide structure 1. When the light is transmitted to the second light-exiting structure 111, a portion of the line light source penetrates the second light-exiting structure 111 and is incident on the second reflective structure 12. After being reflected by the second reflective structure 12, it is evenly transmitted to the outside through one side of the surface light guide structure 1. Another portion of the line light source is directly led out by the second light-exiting structure 111 and transmitted to the outside. The remaining line light source continues to undergo total internal reflection within the surface light guide structure 1 and is then incident on the next second light-exiting structure 111 before being led out again. The second reflective structure 12 enables the reflection and recovery of the light beam after it is emitted from the second light guiding structure 111 to the second reflective structure 12, while avoiding the problem of light leakage from the irradiation device on the other side (i.e., the non-use side) of the surface light guiding structure 1. In addition, the second reflective structure 12 can improve the light efficiency of the light guiding system after recovering light rays at ineffective angles.

[0045] In this embodiment, the second reflective structure 12 may include at least the following structural forms: The second reflective structure 12 is a reflective film attached to the other side surface of the light guide structure 1; The second reflective structure 12 is a reflective coating applied to the other side surface of the light guide structure 1; The second reflective structure 12 is a plate that is adapted to the shape of the surface light guide structure 1 and is spaced apart from the surface light guide structure 1, forming a first gap between them. A low refractive index medium layer is provided in the first gap. The low refractive index medium layer provides the conditions for the reflection of the line light source inside. In actual use, the edge of the second reflective structure 12 and the edge of the surface light guide structure 1 can be directly fixed to each other as a whole, or they can be fixed together on the same carrier (or shell).

[0046] It should be noted that in this embodiment, the second light-guiding structure 111 is designed as a ring structure, and multiple second light-guiding structures 111 are provided, which are distributed at intervals from the center of the surface light guide body 11 to the periphery, that is, there are multiple "rings" of second light-guiding structures 111. The line light source is incident from the outer edge of the surface light guide body 11 and undergoes total internal reflection. During the transmission of light from the outside to the inside, a portion of the light can be transmitted and guided out through each ring of the second light-guiding structure 111.

[0047] It is particularly important to emphasize that, in order to improve the uniformity of the surface light source, the light extraction efficiency or sparsity distribution of the second light extraction structures 111 on the surface light guide structure 1 is non-uniform. That is, the width and spacing of adjacent second light extraction structures 111 are non-uniform, and the light extraction efficiency is also non-uniform. Furthermore, the beam angle and / or intensity distribution shaped by the beam shaping structure 6 is strongly correlated with the distribution of the second light extraction structures 111 of the surface light guide structure 1. When the beam intensity proportion of the line light source incident on the surface light guide structure 1 at a large angle is higher, the second light extraction structures 111 near the line light source end of the surface light guide structure 1 become sparser or have lower extraction coefficients. In other words, from the edge to the center of the main body of the surface light guide structure 1, the arrangement of the annular second light extraction structures 111 becomes sparser from the outside to the inside, meaning the spacing between adjacent second light extraction structures 111 gradually decreases from the outer periphery to the center. Similarly, in the online light guide structure 2, the closer the length of the first light guide structure 211 is to the light source component 3, the shorter its length, or the greater the interval between the two. That is, the distance between adjacent second light guide structures 111 gradually increases from the closer to the light source component 3 to the farther away from the light source component 3. Preferably, the closer the first light guide structure 211 is to the light source component 3, the lower its guide coefficient.

[0048] In this embodiment, the structure of the second light-exiting structure 111 is similar to that of the first light-exiting structure 211, and also includes the following structural forms: The second light-guiding structure 111 includes a plurality of optical microlenses densely distributed on the other side of the surface light-guiding structure 1. The optical microlenses are densely distributed in a ring. When a line light source is incident on each ring of optical microlenses, it is refracted and thus incident on the second reflective structure 12. The light is then reflected by the second reflective structure 12 and penetrates the surface light-guiding structure 1, and finally exits from one side of the surface light-guiding structure 1.

[0049] The second light-guiding structure 111 is a rough surface disposed on the other side of the surface light-guiding structure 1. The rough surfaces are distributed in a ring. When a line light source is incident on each ring of rough surfaces, diffuse reflection occurs, and thus part of the light beam exits the second light-guiding structure 111 and is emitted from one side of the surface light-guiding structure 1.

[0050] The second light-guiding structure 111 is a diffraction structure disposed on the other side of the surface light-guiding structure 1. The diffraction structure is arranged in a ring. When the line light source is incident on each ring of the diffraction structure, diffraction occurs, and some of the diffraction order beams will exit the second light-guiding structure 111 and be emitted from one side of the surface light-guiding structure 1.

[0051] In some embodiments, please refer to Figure 2 and Figure 4A light-transmitting protective cover 13 is provided on one side of the surface light guide structure 1. The protective cover 13 is a structural component with high optical transmittance, its function being to prevent external substances from contacting the first light guide side of the surface light guide structure 1, thereby disrupting the total internal reflection condition and causing undesirable light leakage. A third gap exists between the protective cover 13 and the first light guide side of the surface light guide structure 1. The edge of the protective cover 13 can be connected and fixed to the edge of the surface light guide structure 1, or it can be mounted together with the surface light guide structure 1 on a carrier (or housing).

[0052] In this embodiment, the light source component 3 uses at least two light sources with different wavelengths. That is, the light source component 3 includes a first light source 31 and a second light source 32 with different wavelengths. The first light source 31 and the second light source 32 are distributed near the light inlet of the line light guide structure 2. The first light source 31 is used to emit a first light beam, and the second light source 32 is used to emit a second light beam. The light beams emitted by the two light sources are combined before entering the light inlet. After the beams are combined, they enter the light inlet at a specific angle and satisfy total internal reflection propagation within the line light guide structure 2.

[0053] Both the first light source 31 and the second light source 32 are laser light sources or LED light sources.

[0054] In some embodiments, see Figure 8 A wavelength selective device 4 is set near the light inlet. The wavelength selective device 4 can be an optical lens set at a specific angle near the light inlet. The first light beam emitted by the first light source 31 passes through one side of the optical lens and enters the light inlet. The second light beam emitted by the second light source 32 enters the other side of the optical lens and is reflected. The reflected light beam is combined with the light beam passed through by the first light source 31.

[0055] In other embodiments, see Figure 9 The optical fiber combiner 5 is used for beam combining. Specifically, the optical fiber combiner 5 is coupled to the output ends of the first light source 31 and the second light source 32 respectively. The first beam and the second beam emitted by the first light source 31 and the second light source 32 are respectively incident on the input end of the optical fiber combiner 5 and coupled thereto. The combined beam is emitted through the output end of the optical fiber combiner 5 and then incident on the light inlet of the line guide structure 2 at a specific angle.

[0056] Among them, the fiber optic combining device 5 can be a fiber optic combiner of a suitable model.

[0057] In this embodiment, both the linear light guide body 21 and the surface light guide body 11 are made of low optical loss materials such as PC, PMMA, and silicone.

[0058] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0059] The above provides a detailed description of a medical aesthetic irradiation device provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A medical aesthetic irradiation device for human physiotherapy, characterized in that: The light guide includes a surface light guide structure (1), a line light guide structure (2), and a light source assembly (3). The line light guide structure (2) is a linear structure with at least two light inlets and multiple light outlets. The light source assembly (3) is coupled to the line light guide structure (2), and the light emitted by the light source assembly (3) is coupled to the light inlet of the line light guide structure (2). The line light guide structure (2) is used to transmit the light received by the light inlet and transmit the light to the surface light guide structure (1) through the light outlet. The surface light guide structure (1) is used to receive the light transmitted by the line light guide structure (2) and transmit it to the outside through the surface light guide structure (1).

2. The medical aesthetic irradiation device according to claim 1, characterized in that: It also includes a beam shaping structure (6), which is disposed between the light outlet and the surface light guide structure (1) and is used to adjust the divergence angle and / or "angle-energy" distribution of the light emitted from the light outlet.

3. The medical aesthetic irradiation device according to claim 1, characterized in that: The linear light guide structure (2) includes a linear light guide body (21) made of light guide material and a first reflective structure (22) disposed around the linear light guide body (21). A plurality of first light output structures (211) are provided on one side of the linear light guide body (21) along its linear direction. The first reflective structure (22) is provided with a light outlet corresponding to each of the first light output structures (211).

4. The medical aesthetic irradiation device according to claim 3, characterized in that: The first light-guiding structure (211) is an optical microlens, rough surface or diffraction structure disposed on the surface of the linear light guide body (21).

5. The medical aesthetic irradiation device according to claim 1, characterized in that: The surface light guide structure (1) is a curved surface structure or a hollow hemispherical structure.

6. The medical aesthetic irradiation device according to claim 5, characterized in that: The surface light guide structure (1) includes a surface light guide body (11) made of light guide material and a second reflective structure (12) disposed on the other side of the surface light guide body (11). Linear second light-exiting structures (111) are evenly distributed inside or on the other side of the surface light guide body (11).

7. The medical aesthetic irradiation device according to claim 6, characterized in that: The second light-guiding structure (111) includes multiple annular linear structures, which are distributed at intervals from the center of the surface light-guiding body (11) to the periphery.

8. The medical aesthetic irradiation device according to claim 7, characterized in that: The second light-guiding structure (111) is an optical microlens, rough surface or diffraction structure disposed inside the surface light guide body (11) or on the other side surface.

9. A medical aesthetic irradiation device according to claim 6, characterized in that: The light guide structure (1) has a light-transmitting protective cover (13) on one side.

10. A medical aesthetic irradiation device according to any one of claims 1 to 9, characterized in that: The light source assembly (3) includes at least two different wavelengths: a first light source (31) and a second light source (32), wherein the first light source (31) is used to emit a first light beam and the second light source (32) is used to emit a second light beam. One end of the line light guiding structure (2) is provided with a wavelength selective device (4), which is used to combine the first beam and the second beam and then inject the combined beam into the light inlet of the line light guiding structure (2); or it includes an optical fiber combining device (5), which is used to couple to the first light source (31) and the second light source (32) to combine the beams emitted by the two light sources and then inject the combined beam into the light inlet of the line light guiding structure (2).

11. The medical aesthetic irradiation device according to claim 1, characterized in that: The distance between two adjacent light-emitting ports located near the light source assembly (3) is greater than the distance between two adjacent light-emitting ports located far from the light source assembly (3); or the length of the light-emitting port located near the light source assembly (3) is less than the length of the light-emitting port located far from the light source assembly (3).

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